Relay modules with positive drive contacts are used for functional safety. SAFESERIES contact extension from Weidmuller uses relays that comply with EN 61810-3 Type a forced guide contact. This makes it particularly suitable for signal monitoring in applications that protect people and machines.
SAFESERIES contacts the extension to ensure security feedback to the control level. It consists of four different pluggable relays with matching screw sockets in contact versions 2 NO + 2 NC, 3 NO + 1 NC, 4 NO + 2 NC, and 3 NO + 3 NC. When applications are designed according to EN/ISO 13849-1, the performance levels of PL e can be achieved. The basic components are also suitable for security applications that comply with IEC/EN 62061 to achieve SIL3's level of security integrity.
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